20958850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{719}}^1$

素因数の和:795

約数の個数: 48

約数和(自身を含む): 43390080

約数和(自身を除く): 22431230

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 53, 55, 106, 110, 265, 275, 530, 550, 583, 719, 1166, 1325, 1438, 2650, 2915, 3595, 5830, 7190, 7909, 14575, 15818, 17975, 29150, 35950, 38107, 39545, 76214, 79090, 190535, 197725, 381070, 395450, 419177, 838354, 952675, 1905350, 2095885, 4191770, 10479425, 20958850]

約数ペア:

[(1, 20958850), (2, 10479425), (5, 4191770), (10, 2095885), (11, 1905350), (22, 952675), (25, 838354), (50, 419177), (53, 395450), (55, 381070), (106, 197725), (110, 190535), (265, 79090), (275, 76214), (530, 39545), (550, 38107), (583, 35950), (719, 29150), (1166, 17975), (1325, 15818), (1438, 14575), (2650, 7909), (2915, 7190), (3595, 5830)]